package model.roomManagement.Interface;

import java.util.Observer;

public interface IRoomManageModel {

	public int creatRoom(String subject, String password);
	public boolean deletRoom(int roomId);
	public boolean enter(int roomId);
	public boolean exit();
	public boolean join(int roomId,String password);
	public boolean quit(int roomId);

	public void quitTheSystem();

	public String getRoomInfoByRId(int roomId);
	public boolean changePassWord(String oldPassword, String newPassword);
	
}
